Restoring and rehydrating the state of an actor

[underabrightsky]

Hello,

Thank you for the creation of XState. It is really helpful to be able to use state machines in production systems.

I'm working on a stateful backend service. The logic for changing the state over time is implemented with actors and state machines. I'm trying to save the state of the application on disk.

Unfortunately, it seems that the function spawn can not be used to create an actor with a rehydrated state.

// I was hoping to use
spawn(machine, { state })

But a "normal" service created with the function interpret can be rehydrated with a state.

interpret(machine).start(state)

To be able to save and restore the state of the application, should I attempt to use normal services instead of actors.
If I understand correctly, a service can be given an unique ID and it should be possible for a parent machine instance to communicate with its children.

[universse]

As a workaround, you can consider loading the persisted state from the parent and send an event with that state to the child actor. Or maybe use entry on the child actor to load persisted state.

[underabrightsky]

Thank you.